镗削加工误差的建模及预报补偿技术

文章介绍了镗削加工误差的在线建模和预报补偿控制方法，微量镗杆设计成双杆结构形式，便于误差的在线检测和补偿。用时间序列分析方法对镗削加工误差进行了分析和建模，建立了相应的AR误差模型，对AR模型的预报方法进行了分析，并得到了镗削加工误差的预报补偿控制模型。用切削实验的方法对所建立的模型进行了验证，实验结果表明误差预报补偿方法能有效提高镗削加工精度。

Modeling, Forecasting and Compensating Technology for Machining Error in Boring

On-line modeling, forecasting and compensating way for machining error in boring are introduced. The micro boring bar is designed in a structure of two poles, so as to be easy for on-line error inspection and compensation. Analysis and modeling are made for the boring error by using time sequential analysis way, and corresponding AR error model is established. Analysis is given on the forecasting way for AR model; forecasting & compensating control model is obtained for boring error. The model established is proved by test cutting, and the test results show that the error forecasting & compensating way can effectively improve the boring accuracy.